* {
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
}

ul {
    list-style: none;
}

.menu {
    height: 60px;
    border-bottom: 1px solid gainsboro;
}

.wrap-menu {
    width: 100%;
    padding-left: 24px;
    padding-right: 24px;
}

.wrap-menu>div {
    float: left;
    box-sizing: border-box;
    height: 60px;
}

.clear::after {
    content: "";
    display: table;
    clear: both;
}

.logo img {
    width: 78px;
}

.logo {
    width: 232px;
    position: relative;
}

.ab-y-center {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

.logo span {
    width: 0px;
    height: 0px;
    border: 5px solid transparent;
    border-top-color: black;
    position: absolute;
    right: 20px;
    top: 33px;
    display: inline-block;
}

.logo span::after {
    content: "";
    width: 0px;
    height: 0px;
    display: block;
    border: 5px solid transparent;
    border-top-color: white;
    position: absolute;
    top: -7px;
    left: -5px;
}

.content {
    width: 272px;
    padding-left: 48px;
    position: relative;
}

.search {
    width: 200px;
    border: 1px solid gainsboro;
    border-radius: 5px;
}

.search span i {
    font-size: 12px;
    font-weight: 600;
    padding-left: 12px;
}

.search input {
    outline: none;
    border: none;
    height: 30px;
}

.nav {
    width: 608px;
    position: relative;
}

.nav ul li {
    display: inline;
    padding-left: 25px;
}

.nav ul li:first-child a {
    color: black;
}

.nav ul li a {
    color: #595959;
    font-size: 15px;
}

.xtool {
    width: 189px;
    position: relative;
}

.tool .drop {
    position: relative;
    color: #595959;
    padding-right: 25px;
}

.tool .drop .drop-content {
    display: none;
    position: absolute;
    font-size: 15px;
    top: 50px;
    left: -130px;
    background-color: rgba(255, 255, 255);
    width: 130px;
    height: 100px;
    box-shadow: 0px 0px 5px 1px gainsboro;
    border-radius: 5px;
}


.drop-content::before,.drop-content::after{
    content: "";
    display: block;
    width: 15px;
    height: 15px;
    background-color: white;
    border-radius: 2px;
    right: 10px;
    top: -8px;
    position: absolute;
    transform: rotate(45deg);
}
.drop-content::before{
    box-shadow:0 0 5px 1px rgba(51, 51, 51, 0.247);
    z-index: -1;
}
.drop-content::after{
    z-index: 999;
}

.tool .drop .drop-content p {
    margin: 20px 12px;
}

.tool .drop:hover {
    color: #25B668;
}

.tool .drop:hover .drop-content {
    display: block;
    transition: opacity 1s;
}

.tool .ts {
    padding-right: 25px;
}

.tool .ts:hover {
    color: #25B668;
}

.tool .sele {
    width: 0px;
    height: 0px;
    border: 5px solid transparent;
    border-top-color: black;
    position: absolute;
    right: -20px;
    top: 15px;
    display: inline-block;
}

.tool .sele::after {
    content: "";
    width: 0px;
    height: 0px;
    display: block;
    border: 5px solid transparent;
    border-top-color: white;
    position: absolute;
    top: -7px;
    left: -5px;
}